In reply to the chap trying to start his transit. I had the same problem and only after reading the instructions I realised any battery with less than two volts charge will not accept normal jump starting from the GB40 or GB70. You need to press the manual override button for three seconds to force charge. The main difference between both units is the GB70 will start more vehicles after a full charge so best for workshops, car hire locations etc. If it’s for 2/3 car family use the GB40 is totally adequate.
Verified purchase: No
Novo gb40 perfect start for small medium engines
Verified purchase: Yes | Condition: Pre-owned
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